Nan Q., Li T., Chen J, Yu X., Li Q..  2008.  PALEOPRODUCTIVITY VARIATION AND ITS CORRELATION WITH CLIMATE CHANGES:AN APPROACH OF LONG-CHAIN ALKENONE. Quaternary Sciences. 28(3):482-490.

Chang F., Zhuang L., Li T., Yan J., Li Q..  2007.  The Environmental Anomalies in the Northeastern East China Sea during the Last 3000 Years: Implications for El Nino Activity in the Holocene. 9th International Conference on Paleoceanography (ICP 9).